| Duisburg to Orangevale (California) | 5,464.55 mi (8,794.35 km) |
| Duisburg to Orchards (Washington) | 5,079.62 mi (8,174.87 km) |
| Duisburg to Orcutt (California) | 5,670.81 mi (9,126.29 km) |
| Duisburg to Oregon (Ohio) | 4,062.46 mi (6,537.90 km) |
| Duisburg to Oregon (Wisconsin) | 4,220.21 mi (6,791.77 km) |
| Duisburg to Oregon City (Oregon) | 5,101.87 mi (8,210.66 km) |
| Duisburg to Orem (Utah) | 5,098.60 mi (8,205.40 km) |
| Duisburg to Orinda (California) | 5,538.76 mi (8,913.78 km) |
| Duisburg to Orland Park (Illinois) | 4,229.12 mi (6,806.11 km) |
| Duisburg to Orlando (Florida) | 4,628.14 mi (7,448.27 km) |
| Duisburg to Ormond Beach (Florida) | 4,576.80 mi (7,365.64 km) |
| Duisburg to Oro Valley (Arizona) | 5,524.98 mi (8,891.60 km) |
| Duisburg to Oroville (California) | 5,425.15 mi (8,730.93 km) |
| Duisburg to Oshkosh (Wisconsin) | 4,137.47 mi (6,658.61 km) |
| Duisburg to Oskaloosa (Iowa) | 4,417.22 mi (7,108.83 km) |
